Wheeled scraper



Sept. 23, 1930.

E. M. UTTERBACK 1,776,460

WHEELED SCRAPER Filed July 11, 1928 3 Sheets-Sheet l IIIII/l afiargz gyr S p 23, 1930- E. M. UTTERBACK v 1,776,460

WHEELED SGRAPER Filed July 11, 1928 3 Sheet s-Sheet 2 P 23, 1930. E. M. UTTERBACK I 1,776,460

WHEBLED SCRAPER Filed July 11, 1928 s Sheets-Sheet 3 I ahtd se t. 23,1930 7 i 7' 1 77 4 1, ZEiZ ZRA M. UT TERBAC KQOF CRESTON, IOWA a I ';-:WHEELED SCRAPER I s I ;j npplicationFfilegiiluly11,1928. Seria1No.292,003. y i p i 1 I The object of inventionis to'provide F igure '1 is a rear elevation of my improved .an improved construction. fora scraperjof Wheeled scraper. v i the type wherein a frame is mounted on c Figure is a longitudinal section of the wheels with aLscraperpanswungbelowithe same on theline 22 of Figure '1 ,;the dotted '5 frame; 'f '7 1 lines'indicatingthe position of someofthe 56 i A further object of the inventioniis toproparts when the scraper pan isjin elevatedpovideg'animprov'ed machinefor gatheringas1tion. e load of'ear'thf'orj the like,elevating ltheload F1gure'3 1s a detail sect on through the V 1 by and h h th adv f th m hi clutch mechanism on the llne 33 of Flg- 'l -conveyingthe load to adesired location and lre p a therefdumping' y e V v v Figure 4 1s a further detall of theclutch Still another object ofthe invention is to l m P the E of F gu q V I v provide impr ved means f o tin a Figure 5 1s a detail sectional view indicatpsq-appef 3' wh l d hi l' y ing the means for automatically releasing the further object to provide improved -9 mechanlsmv I o5 foot-actuated mechanism for controlling the Flgure a p n v t r e jfimng, raising, dumping, and lowering f the; ken away, illnstratlng the combination of scraperpan; 4 T p I my improvedscraper with a smooth ng and 7 Another and further object of the invenylevellng i v tion is to provide'improved means for ,auto- Flgure 7 1S a i eievatlon of the c-Ombmed I matically releasing the clutch mechanism emi Shown m Flgmfe vc for raising the loadvivv'henv the pan Figure 8 1s a detallsect-ional elevation of v has reacheda certain elevation. i i j f gi Provided m 1. 1" 9 Another object ofthe invention isto prom I h vide an improved scraper pan, having a nt eaccompanymg mw hinged gateat its rearend and an improved cployed the numeral 10 t deslgnate. gene? lateh for holding it "in closed position; al frame the i i f i i H el r q i mimwed eastwardtartarsfa i 50 t m i g e fih i g f g a and a tongue 13 is connected in any su'itable 8G i ggn a P m- 1 1 2% e i manner with the intermediate portion of it l u? bie ti to P w l Y 14 is ournaled for rotation at the COmbmaUQHJmaChmQ for mlsmgrconvieymg rear portion of the frame lO -and wheels 15 i 35" (1690511311155 load and P are mounted upon the ends ofthe axle 14.

' leveling the substance after 11: 1s deposited.

y j I prefer to employ the usualratchet esn e d further 'Qbl of the mven" capement devices for the Wheels 15, as shown hon 1S to'pmvlde a mach-1190f the Character inFigure 8, including an annular ratchet 16 desclfibedjwhich i 511111716 y t vm l a fixed tothe shaftll and a pawl 17 pivoted 40 i t y @{ficlfmt In 1139, to the wheels 15 and held in engagement with posed of comphcated mechanlsm -wh1ch th t h tbya spring 18. q r' Wollldbe ap ge Out This arrangement provides an operative IT/Vifh the-SB and other Objects v y connection between thewheels 15 and axle 14 v invention consists in the (construction; arh th h l a t i i fo w d 45 'rang m n m i n of the v r o direction, but ermitting? the Wheels to esparts of my device, wherebythe objects 0011- cape th axle when turning in a rearward te'mplated are attained, as hereinaftermoredirection. fully set forth, pointed out in my claims, and At its rear end the frame 10 is formed with vjHuStrated in the accompanying drawings 'in a downwardly extending portion 10 and subcso'whichz. a. l J a 1 stantially L shaped brackets 19 are fixed at V A scraper pan 20 1s mounted below the frame and has itsforward portion pivotally .connectedfby .lin'ksi21 with thegbrack,

ets 19 fat points a'dj jacentia the brackets.

fngle's ,of. said Rearward links 22 are pivoted to therear I portion's of the sides of'the p'anai20ian'df'toi1 7 upon drums 45vand46, which are normally intermediate parts of the horizontal pordownwardly extending ears 23 carried by v ftions of the brackets'lQ, Y a By this arrangemen t',"the scraper pan2d is pivotally mounted to the bracketslQby two pairs of links and the pivotal ,connections of atherearward links arelower than the pivotal r connectionsof the'forw-ard linkssothatwhen it r gosthetpan is elevatedits reariendrtravels1upivwlard; more rapidly to clear the'gro-u-nd.

V j The pan is open atits top an'di-at its forward end andiis provided with afsuitable 7 cutting or scraping edge, The pan 20 is also V 2 5 open at its rear end but is normally closed byahinged g j I a The gate 24carr1es ears25 at-itsupper marv gin whichyare pivoted on a hinge rod 26 ex tending transversely; of the pan.

7 a pair-otlatch-rods-27 and 28 loosely mounted I in keepers-29 and 30 carried byathe-lower porxtionofthe rear f'aee' of said gate. 1 Each of I the latch rods 27 and 28 projects fiat oneend beyond a side-margin of thegate and'is adapted to engageanupwardly opening hook member31 or 32 carried-by and projecting urearwardly fronmthe adjacent side wall of the pan 20. r

therearface of theigate '24 and each ofsai'd bellcrank levershas one of its arms pivotally ,the drum- I j r Springs 56jarefixed to thefree' ends of 1 thepawls49 and to ears '57 carried by the :110

conne'cted to the inner end, of one of the latch *rods' 27 and 28., s

5. Links '35 and 36 are plvoted to the other arms} of the bellcrank levers and are pivotally attached at their opposite ends to an in- -termediate portionof a liftingv lever 37 ful-i crumed on the rear face ofthe gate24 and 50 having its free end loosely received within keeper 38 carriedbysald gate.

oscillatingthe bell crank levers 33 and 34 1:55 through theilinks'35. and 36, and thereby :end of the pan: 20 and has attached ithereto, a flexible draft member such as a chai n 40 swhichrex-tends" forwardly and -isz-radj ustably .connected to kthe rear end: portion -vof the \esntongue 13; over tthes. frontvaxl'ei Theidraft The latching means for the gate 24 includes ,Bell crank levers 33 I and 3 4 are pivoted on been released. I

A? ba il or yoke 39 is-pivoted to-itheriforward ymember'4O may be shortened or lengthened, I

as desired, thus controlling thedepth of cut of the scraper pan.

Ears 41 are fixed to and project forwardly V of the forward end of'the scraper pan'20 and m 7 elevating memberssuch as chains 42 and 43' 43 then extend rearwardly and downwardly 7 1 Z-and are fixedto'iand adapted to be wound loose-on the rear axle 14. a

1 V The .clutchmechanism for operatively connecting" the 'drum's'45 and 46 witht-he axlego r 14..for1ns the subject matter otmy-i compan ion application filed July 1 1, 1928,;Serial No. A 292,004, but I havexhere shown and will describe enough of suchcof said'clut'ch niecha nism that the operation of the machine may 85' r .be understood,

innerfaces" of thedrums 45 and-46 are clutch members 47 and/48 each of which has pivot V a I ally mounted on one-face a pair ofpawls 49;; 90 the pivots of which areindicated at 50 (see Figure The pawls 549 projectwithin a .recess 51 formed inthe adjacent .face of the adjacent drum su chtas 45 infFigure 3; and each of sai-dpawls is formed with a 'proj 60-;13'95 tion .or' tooth s52 adapted'riorioperative engagement with internalteeth 53 formed pe ripherally ofthe recess of the drum. v

Slidably mounted in the cl utch member,

such as 47 ,aij hpair of plungers 5'4, each- 109 7 formed with aninclined end'portion adapted to engage a pivoted roller 55 I carried by V one of the pawls, 49 and arranged to move saidpawls through 'anarc'so that the teeth 52 will engag th i t t 53 ofthems 7 drum and" thereby'cause an operative engagementbetween the clutch member and I clutch member to normally holdsaid pawls v out of operative engagement with the drum. v The opposite ends of the plungers 54 project'from the clutch members 47 and 48 and -are engaged bysleeves558 and 59loosely-xi15 mounted on the shaft'or axle 14. The plunge. Suitable means which is hereinafterdd -scr-ibed, is provided iori'lifting the lever 37,

ers 54 are provided with coil springs 60,

which are designed to withdraw them'from =therecesses ofthe' drums when pressurehas Loosely mounted on'the central'portion of the axle 14 are cooperating clutch actuating members 61 and 62, which contactwith each other'and with'the sleeves 58 and 59 respectively. The :clutchactuating member 61 is formed with inclined faces adapted to engage projections 63 on the other clutch actuating member 62, whereby said clutch actuating members i are forced-{apart when they are rotated oppositely, thus exerting pressure 37120,

Suitably. fixed tothe-axle adjacent at? i '7 uponfthesleeves 8lgand59 and 'ca-usingtthein to-project the plungers' 54toward andv within the drums-45 and 46, to'olutch said drums :toithe axlerl4through the means just def scribed.

- 68;on the forward side of the clutch actuatfling member 61', while thecrankarm;66 is i pivotally connected by a link 69 with an ear .170'onthe rearward side of the clutch act'uat ing m'ember 62. l/Vhen the rockshaft 64is rotated in suchmanner as to raise the crank members apart arms 65 and66, an upward pull is'exerted uponthe'links 67 and 69 which causes a sli'ght.opposite rotation ofthe clutch-actuating members 61 andj62, thus forcing said with the-result previously mentioned.

'A shaft 71 is journaled transversely of the frame 10 infront of the operators seat 72. A clutch pedalv lever 7 3 is pivotally mounted on the shaft 'ZI-andis designedfor operative engagement with. a clutch lever 74 alsoloosely mounted on said shaft and extending rearwardly therefrom. This operative engagement may he by means of a lug- 1 or shoulder 7 5 on the pedal lever' 7 3 1 adapted to engageea lug or shoulder 76 on the forward end "ofthe clutch lever. 74;

' Pivotally connected to the rear end of the clutch lever 74 is a link 77 which extends ,rearwardly and has apivotal connection to an arm 78 fixed to the rock shaft 64. WVhen foot"pressure is applied to the pedal lever 73 it'raises the clutch lever 74 to the position shown by full lines in Figure 5, thereby I exerting a pull upon the link 77 and through the" arm 78 rotating the rock sha c 64 for- I -wfardly so; as to-exert an upward pull upon the links 67 and 69150 operate, the clutchlactuating members 61 and 62.

This causes thedrums -and 46 to be i clutched to the 1 axle 14 and thereupon,{forward travel of the 'machinewill cause the chains .42; and 43 to he wound upon the said drums, whereby the scraper pan 20 israised 1 to the position shown bydotted-linesin Fig- .;ure2. j

It is-assumed ofcourse, that this action. usually takes place after the scraper pan 20, has received a load through forward ad-I Yvanceof ,the machine. I

A -releasing rod 79 is journaled transver sely of the frame below the shaft 71 and said rod is formed witha downwardly extending? crank or offset portion 80, whichis 7 adapted to be contacted bytheforward portion oftheseraper pan 20 when said pan approaches its upwardlimit of movement.

The release rod79 also'is formedwith an "upwardly extending crankorofiset portion elevated position.

, 81, which is adapted ,to'be'engaged andembraced by ajhookm'ember 82 formed on and extending forwardly from the .clutch lever 74, when said clutch lever is moved forwardlytooperative position, as hereinbefore described. H a. c

When the. scraper pan 20 engages the downwardly extending crank portion, 80, it moves saidcrankportion rearwardly, as indicatedin Figure 5, thus rocking the release rod 7 9" and moving the upwardly extending crank portion 81 forwardly, thus pushing the hook member 82 upwardly and returning the clutch lever 74 to the inoperative position indicated by dottedlines.

Thereupon, the springs 60'act to withdraw the plungers 5 4 and the springs 56 act to withdraw the pawls 49, so that the clutch mechanism is automatically moved to inoperative position and upward movement, of

the scraper pan ceases. I prefer to provide means to insure that the rotation of the drums 45 and 46 will be synchronized so that uniform pull or tension is exerted upon the chains 42 and 43 at all times. This means includes a counter shaft 83 journaled at the rear of the frame and having pinions 84 and 85 fixed thereto and meshing with external gears 86 and 87 formed on the respective drums. v I also provide means for normally pre- 1 venting reverse rotation of the drums 45 and 46 and for thereby maintaining the load in This means includes ratchet wheels 89and "90. formed on the respective drums and engaged by gravity pawls 91 and 92 tion 10. s I

The means for opening the. gate 24and permittingthe load of the scraperpan to be deposited includes a pedal dump lever 93 a loosely mounted'on the shaft '71. The dump lever 93 is formed with a rearwardly extendingarm 94 substantially at right angles thereto and a link 95 is pivoted at one end i to said arm and extends r'earwardly where it is pivoted at its opposite end to a lever 96.

The lever 96is fulcrumed between its ends at the rear of the frame portion 10 and fixed to its lower end is a draft member such as a chain 97, which is attached to an intermediate point of the lifting lever 37. I

When the pedaldump lever 93 is pressed forwardlyby the foot of the operator, the arm 94thereof is moved upwardly, exerting a pull on the link 95 and oscillating the lever 96 to the end of raising the lifting lever-.37 through the draft chain 97. Upward movement of the lifting lever 37 causes the latch rods 27 and 28 tobe withdrawn and permits the gate 24 to swing rearwardly on the hinge rod 26so that thefload may be deposited-from the rear end of the scraper pan.

The means for permitting the pan 24 to be lowered includes a p'edallever 98 fixed to pivoted on the frame porthe shaft'llf, Which l shaft is forin'ed-at'its ends withcranks-99 and 100. Links 101; 102' 'pivotally connect the cranks99 and 100'with 'th'egravity paw-ls: 91 and 92 respectiv el-y.

Forward pressure on the pedallever 98 causes an Oscillation of the shaft 7'1 and a pull on the links 101and 102 through the i V crank arms 99 and 100', thus lifting the pawls 91 and 92 out of'engagement with the ratchet wheels189 and 90. This freesthe'drums 45' i and 16 and permitsthe scraper pan to move I As thepan 20 assumes its loweredpositioii,

the gate 24 swings back to place across its by I gravity. to lowered position.

rear endand theprojecting ends of the latch 'rods' 27 and '28 strike the hook members 31 and 32,"which areinclined at their rear ends.

, As' thelatch rods 27 and 28'are pivoted at their inner ends and have a'freedomof movement-in the keepers 29and 30 ftne1r outer ends are permitted to move upwardly, as

' indicated by dotted lines in Figure 1, until other purposes.

' lifting, conveying, and depositing a'load with a minimum of'time and labor as com 1 40 they enter the upwardly o-peninghoolrs' of the members 31 and 32, after which said latch rods drop into position within said hook members and thegate is thus latched.

The seat 7 2 for the operator is placed above the frame 10-where he is out of the dirt and dust and 'where he can easily reach the'co'ntrol levers and since allof the controls are arranged for foot actuation, it followsthat the driver has both hands free at all times for It is apparent that I have designed wheel scraper which is compactly arranged and Which is of sturdy and dependable construction andis especially efficient for receiving,

pared" with the'results accomplished. V T 'In Figures 6 and 7 I have illustrated a {'modified form wherein provision ismadefor mounting a smoothing and levehng'blade on thefframe infront of the scraper pan. v

In this construction the mechanismis the same'astpreviou'sly described, but the frame 10 is lengthened to accommodate the blade, I which-is designated by thenumerztllOS. The

blade'103 is carried by an auxiliary frame 104 having a forwardly and upwardly extending beam 105 removably attached at its free end to a hook 106 carried by the rearend of the tongue 13 of the machine. The auxiliary frame 104 may also be attached by means "of chains 107 and 108 to the forward end of o the frame 10 and by rearwardly extending 7 tive ends ofthe blade103 and the upper ends "chains 109 and 110 to the brackets 19 :at op a posite sides of the main frame.

v Standards 111 and 112 are fixed to from the auxiliary frame 104 near the respecof said standards are pivotally connected bylinks 113 and 11 1- to'theforward endof the main frame 10. V Hand wheels 115 and 116 are1nounted in and rise, labor. '7

longitudinal planes at f opposite sides of the main frame and are" fixed respectively to worm fshafts 117 and 118 journaled" translver'sely seal-J72. e I

Control shafts 119 and'120"are2journ'aledof the frame in-front'of' the drivers longitudinally at opposite": sides of the frame and said shafts are provided "with worm gears 121; and, 122;:which mesh respectively with the worms of the shafts 117 and 1185 At their forward ends, the control shafts 119 and1120 are formed with cranks oroffset portionsf123 and 124vrespectively; hi h. -iv engage the uppe ends 1 of stems 125 and 126- projecting upwardly from the stand ards 111 and 112. 'The stems 125 and 126 preferablyiarenot'zrigidly attached to the standards; bute xtendj loosely there'through and are cushioned by meansof; coil springs 127 mounted thereon engaging tlie upper ends of said standards" and set collars 128 carried by the stems. 3 Set collars 129 are also fixed to the lower ends of the stems 125 and 126 and said set through which flanges or ears the stems are slidably extended.

' c When either of the 'handwheels 115, 116 is .rotated' inlone direction, it causes a rotation" of'its control shaft 119 or and a downward pressure on the adjacentstem'125' and 126 through the crank of the control shaft;

This exerts a cushioned downward pressure onthe post 111 017112 and consequently .avpressure on one end or the other oftheq collars engage beneath'fianges or ears 130 on the upper'ends of'the standards 111 and 112 blade 103 In case the blade 103 engages-an erting an upward pull on the standards lll' and 112 through the set collars 129.

band wheels 115 and 116 the 'levelingblade 103 may be raised; the stems and 126's):-

By combining the smoothing and'leveling blade 103 with the elevating, conveying and dumping apparatus, I have "provided amachine which is useful for grading, leveling and surfacing roads or highways. By the use of this machine, a load of earthfcan be picked up and deposited in any desired place without loss of timeand the smoothing and leveling blade 1 will be effective '{to leveliand smooth off the load which was previously del posited when the nextload is discharged, thus resulting in a further saving of time and i In the combination machine, the draft chain- 10 for the scraper pan is adjustably con- 7 nected to a hook 131 carried by the draw beam 105 of the auxiliaryfra'me H I claimas my invention: p I -1. A machine offthe charac'ter described,

'ed therein,

Comprising a frame, an axle rotatably mounttraction wheels on sald axle, a

scraper pan arranged below the frame, links pivotallyconnecting said pan with the frame,

flexibledraft means connected with the fo rward end of thepan and ad ustably attached to the forward end of the frame, drums loose-o V v ly mounted on said axle, draft elements fixed to and adapted to bei-wound on said drums, pulleys on said frame above the pan, said draft elements being extended over said pul-v leys and connected to'said pan, clutch members fixed to said axle adjacent said drums,

means for causing an operative engagement of said clutch members with the drums for elevating said pan as the machine is advanced, together with ratchet and pawl devices for I normally preventing reverse rotation of said drums and thereby holding the pan in elevated position, a rock shaft j ournaled in the frame, a lever on said rock shaft, cranks on said rock shaft, and links pivotally connecting said cranks with said pawls for simultaneously releasing the pawls from the ratchets.

3 2.1L machine of the character described, comprisinga frame, an axle rotatably mount ed therein, traction wheels: on said axle, a

scraper pan arrangedbelow the frame, links pivotally connecting said pan with the frame, .fiexible draft means connected with the forward end of the pan and adj ustably attached to the forward end of the frame, drums loosely mounted on said axle, draft elements pulleys and connected to said fixed to and adapted to be wound on said drums, pulleys on said frame above the pan, said'draft elements being extended over said pan, clutch members fixed to said axle adjacent said drums, means for causing an operative engagement of said clutch members with the drums for elevating said pan as the machine is advanced, the last named means including a lever, a trip rod journaled adjacent said lever and formed with an extension, a hook on said lever adapted to engage said extension, and a downwardly projecting arm on saidtrip rod adapted to be engaged bythe scraper pan in its upward movement to oscillate the trip rod'and cause said projection to press against said hook for throwing the lever s to inoperative position.

means on the walls of said ment by said latch rods, and means for oscillating said lifting lever to withdraw the latch rods and permit the gate to open.

4. In a machine of the character described,

between said bell, cranks a scraper pan open at one end, a gate hinged at its upper margin for closing said open end, a lifting lever fulcrumed at one'end on said gate, bell crank levers fulcrumed on said gate below the lifting lever, pivotal'connections and the lifting lever, latch rods pivoted to said bell cranks, detent means on the walls of said pan for engagement by said latch rods, and means for oscillating said lifting lever towithdraw the latch rods and permit the gate to open, said detent means being formed with inclined strike faces and said latch rods being capable of lateral oscillation to permit them to reenter said detent means after engaging said strike faces.

5. In a wheel scraper, a scraper pan, a clutch controlled means for elevating said pan, a lever adapted for actuation to place 1 upward movement to oscillate the trip rod and cause said projection to press against said hook for throwing the lever to inoperative position.

Des Moines, Iowa, June 20, 1928. EZRA M. UTTERBACK.

7 ine 

